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Modelling phase transition in metastable liquids: Application to cavitating and flashing flows.

Richard Saurel 1, 2 Fabien Petitpas 1, 2 Remi Abgrall 3, 4
2 SMASH - Simulation, modeling and analysis of heterogeneous systems
CRISAM - Inria Sophia Antipolis - Méditerranée , Université de Provence - Aix-Marseille 1
4 SCALAPPLIX - Algorithms and high performance computing for grand challenge applications
Université Bordeaux Segalen - Bordeaux 2, Université Sciences et Technologies - Bordeaux 1, Inria Bordeaux - Sud-Ouest, École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), CNRS - Centre National de la Recherche Scientifique : UMR5800
Abstract : A hyperbolic two-phase flow model involving five partial differential equations is constructed for liquid-gas interface modelling. The model is able to deal with interfaces of simple contact where normal velocity and pressure are continuous as well as transition fronts where heat and mass transfer occur, involving pressure and velocity jumps. These fronts correspond to extra waves in the system. The model involves two temperatures and entropies but a single pressure and a single velocity. The closure is achieved by two equations of state that reproduce the phase diagram when equilibrium is reached. Relaxation toward equilibrium is achieved by temperature and chemical potential relaxation terms whose kinetics is considered infinitely fast at specific locations only, typically at evaporation fronts. Thus, metastable states are involved for locations far from these fronts. Computational results are compared to the experimental ones. Computed and measured front speeds are of the same order of magnitude and the same tendency of increasing front speed with initial temperature is reported. Moreover, the limit case of evaporation fronts propagating in highly metastable liquids with the Chapman-Jouguet speed is recovered as an expansion wave of the present model in the limit of stiff thermal and chemical relaxation.
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Contributor : Rémi Abgrall Connect in order to contact the contributor
Submitted on : Friday, October 24, 2008 - 1:57:17 PM
Last modification on : Friday, February 4, 2022 - 3:23:37 AM
Long-term archiving on: : Tuesday, June 28, 2011 - 5:23:41 PM


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  • HAL Id : inria-00333908, version 1


Richard Saurel, Fabien Petitpas, Remi Abgrall. Modelling phase transition in metastable liquids: Application to cavitating and flashing flows.. Journal of Fluid Mechanics, Cambridge University Press (CUP), 2008, 607, pp.313-350. ⟨inria-00333908⟩



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